Here is a cracking wee video which gives a terrific summary of what happens in an electric circuit.
I found it on Mr. Mackenzie`s Fizzic Site
This is a brilliant site to add to your enjoyment of physics. Check it out now.
The video can be found here
The vrms voltage is the dc equivalent of the given ac voltage. Think of it as the `battery` equivalent of the ac source.
Study the above lesson to find the vrms from an ac source.
Hi Physics lovers study this lesson on how to find the frequency of an ac signal from an oscilloscope.
Hi physics lovers here is a worked example on how to find the tension of a rope holding a balloon onto the ground.
This is a famous Higher Physics question, so study it and learn those forces.
My second year classes have been playing with the microelectronic boards all last week. The classes are very interested in microelectronics. We spent about half an hour looking at a deskfull of ipods, mp3 players and mobile phones talking about what happens inside these magical devices.
We also talked about creating microelectronic circuits that could benefit society. We will be hard at work in the coming weeks working in teams using the above boards.
So if any of you want to experiment click the picture of the board and have some fun designing your circuits.
Magnetic field lines made visible by iron filings.
Happy New Year of 2009
My second year classes have been studying magnets and magnetic fields. We had a great discussion about magnetic fields. Our talk after our experiments included how vital is our planet`s magnetic field. We even managed to squeeze in a discussion about the Northern Lights.
Check out the cool picture of the magnetic field made visible around a magnet using iron filings.
If you want to find out about the Northern Lights click on the links below.
